(I) Stained glass windows are part of Britain's heritage.(II) In fact we see them so often that we take the hours of effort that go into creating them for granted. (III) So an exhibition that counterbalances this effect is of particular value. (IV) Actually it is the work of local designers that are particularly interesting. (V) This one does just that by following the whole creative process from the initial designs all the way through to the finished product.